cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A215241 Unsigned matrix inverse of triangle A214398, as a triangle read by rows n >= 1.

Table of values

n a(n)
1 1
2 1
3 1
4 3
5 4
6 1
7 18
8 26
9 9
10 1
11 172
12 256
13 99
14 16
15 1
16 2313
17 3489
18 1416
19 264
20 25
21 1
22 40626
23 61696
24 25650
25 5120
26 575
27 36
28 1
29 887326
30 1352518
31 569772
32 117980
33 14450
34 1098
35 49
36 1
37 23282964
38 35566368
39 15099042
40 3193728
41 410850
42 34608
43 1911
44 64
45 1
46 715540140
47 1094499820
48 466865280
49 100049120
50 13259705
51 1186857
52 73696
53 3104
54 81
55 1

List of values

[1, 1, 1, 3, 4, 1, 18, 26, 9, 1, 172, 256, 99, 16, 1, 2313, 3489, 1416, 264, 25, 1, 40626, 61696, 25650, 5120, 575, 36, 1, 887326, 1352518, 569772, 117980, 14450, 1098, 49, 1, 23282964, 35566368, 15099042, 3193728, 410850, 34608, 1911, 64, 1, 715540140, 1094499820, 466865280, 100049120, 13259705, 1186857, 73696, 3104, 81, 1]